Home / 3,916.96-5,406.55-2,590.99

Finding the Fourth Proportional to 3,916.96, 5,406.55 and 2,590.99

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Solution

The fourth proportional to 3,916.96, 5,406.55 and 2,590.99 is: 3,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.96 : 5,406.55 = 2,590.99 : x
  2. Step 2: Convert to fraction form
    3,916.96/5,406.55 = 2,590.99/x
  3. Step 3: Cross multiply
    3,916.96x = 5,406.55 × 2,590.99
  4. Step 4: Simplify right side
    3,916.96x = 14,008,296.99
  5. Step 5: Solve for x
    x = 14,008,296.99/3,916.96
  6. Step 6: Final answer
    x = 3,576.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.